Wrench



s. CHAMPION Jul 1, 1924. 1,499,804

WRENCH Filed May 15 1922 I"? a if f /d I n l nun- 1 I I X M I is 46 2a a wumtoz I 54 filampe'olz Patented July 1, 1924.

SANDY CHAMPION, OF HOT SPRINGS, ARKANSAS.

WRENCH.

Application filed May 15, 1922. Serial No. 561,052.

To an whom it may concern Be it known that I, SANDY CHAMPION, a citizen of the United States, residing at Hot Springs, in the county of Garland and State of Arkansas, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention has reference to a socket wrench and particularly to wrench for facilitating the removal of demountable rims of automobile tires.

An object of the invention is to provide a wrench with means whereby it may be readily clamped to an automobile wheel in proper position for removing the lug nut which holds the tire rim in place, the said wrench being automatically operated for turning the nut as required.

An additional object is to provide a socket wrench of generally improved construction and design whereby itis adapted to be conveniently employed in small and cramped spaces where it is usually diflicult to handle the Wrench proper.

A further object of the invention is to provide a wrench of the character above specified that is simple in construction strong and durable, and which it is believed may be manufactured at a reasonably low cost.

Various other objects and advantages of the invention may become apparent during the continuance of the following description.

In the drawing:

Figure 1 is a top plan view of the proposed invention,

Figure 2 is a longitudinal central section view thereof showing the manner in which the same is employed in practice.

Figure 3 is a fragmentary view in perspective of the clamp end of the tool, and

Figure 4 is a sectional detailed View on line 4 i of figure 2. V

Describing the invention in detail 10 indicates the body or stock of the tool which has one end providing a handle 11. At its other end the stock is provided with a vertical proj ection 12 thru the transverse center of which extends a shaft 13. Shaft 13 extends longitudinally of stock 10 has its inner end suitably journaled 14 and provided with beveled gear 15. Gear 15 meshes with gear 16, the latter turning on a shaft 17 turning in suitable bearing 18 at the inner end of handle 11, one end of shaft '17 is provided with a handle 19 whereby it may be turned to rotate the shaft in a manner that is obvious. Slidably m ounted on the outer end of shaft 13 is a socket 20 which is retainedon the shaft by a removable nut 21 at the outer end of the latter. A spring 22 encircles the shaft between block 12 and the inner end of socket 20 and normally expands to hold the socket member projected beyond nut 21. Socket 20 may be of any suitable shape to grasp and hold the nut to be turned and is to be so mounted on shaft 13 as to rotate with the latter when the same is turned by means of handle 19.

The tool is provided with clamping means for holding it in position to remove lug nut whereby it is especially adapted to be employed for removing demountable rims from automobile wheels as indicated by the dotted line structure of Figure 2. This clamping device comprises a fixed jaw 23, which may be formed of a single strip of wire, projecting forwardly from the forward end of stock 10 so as to pass under the felly of the wheel and having an upward extension 24: at its end to engage on the inside of the wheel felly. An upward or movable jaw 25 is arranged to move on jaw 23 as on a guide for engaging the outer face of the wheel felly and as a slide bearing in block 12 as indicated at 26. This upper jaw may also be formed of a single strip of wire as shown and is adapted t0v be normally held in a retracted position by means of spring units 27 The spring units tend to hold the jaws apart so that the wheel felly may be conveniently engaged there between when properly positioning the tool. The jaws are clamped against the wheel felly by a pivoted lever 28 located on the under side of handle 11 so as to be conveniently grasped by the operator handling the tool. This lever is connected by a suitable cable 29 which passes over a pulley 20 to tie-plate 31 carried by the upper jaw 25 as clearly shown in Figures 1 and 2 of the drawing. By moving lever 28 u wardl against handle 11 the cable is pulle in such a direction as to cause tie-plate 31, and, hence upper jaw 25 to be drawn forward against the tension of springs 27 which are thus compressed. This movement of lever 28 is efiected by a natural closing of the fingers as the hand is placed around handle 11 so that the jaws will be automatically clamped in place by the same hand as that in which the tool is held. Since the socket 20 is adjustable on the shaft it is obvious that the same will accommodate itself to various widths of wheel fellies so that the lug nuts on the side of the felly may be readily engaged. The nuts are removed merely by turning handle 19 to rotate the socket in such direction as.

to unscrew the nut from the bolts.

From the foregoing it is'b'elieved'that the" Arwrench tool comprisingia stock, a shaft rotatably mountedm' sa1d stock a socket wrench j awslidably mounted at one end of said shaft, a sprlng to normally'hold' said jaw in its forwardmost' posltlon, means ineluding a handle to rotate said shaft and jaw, a fixed Clamping jaw carried by said stock in advance of said wrench aw, a movable clamping aw carried by said stock and mounted to slide on said fixed clamping jaw, means to normally hold said movable clamping jaw in its inwardmost position in spaced rotations to saidfixed clamping jaw, a lever pivotally mounted on said stock, and means operatively connecting said lever and said movable aw whereby upon proper movement of said lever said movable jaw may be carried to move toward said fixed clamping j aw.

In testimony whereof I affix my signature.

SANDY CHAMPION. 

